package com.itheima.reggie.common;

import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;

import java.sql.SQLIntegrityConstraintViolationException;

//全局异常处理 加了配置的注解都会被这处理
//告诉我需要拦截规则，我帮你把他们拦下来，具体你想做更细致的拦截筛选和拦截之后的处理，你自己通过@ExceptionHandler、@InitBinder 或 @ModelAttribute这三个注解以及被其注解的方法来自定义。
@ControllerAdvice(annotations = {RestController.class,Controller.class})
@ResponseBody
@Slf4j
public class GlobalExceptionHandler {
    //进行异常处理方法
    @ExceptionHandler(SQLIntegrityConstraintViolationException.class)
    public R<String> exceptionHandle(SQLIntegrityConstraintViolationException ex){
        log.error(ex.getMessage());
        if (ex.getMessage().contains("Duplicate entry")){
            String[] split = ex.getMessage().split(" ");
            String msg = split[2] +"已存在";
            return R.error(msg);
        }
        return R.error("未知错误");
    }

    //进行异常处理方法
    @ExceptionHandler(CustomException.class)
    public R<String> exceptionHandle(CustomException ex){
        log.error(ex.getMessage());
        return R.error(ex.getMessage());
    }
}
